Today, the second Thursday after Easter, is the beginning of the 12 Days of Blessings, which is the first of the three dozenals of the Ascension Season.
The 12 Days of Blessings are a celebration of the open-minded virtue of Hope (ἐλπίς in Greek), and Joyful Thursday is a day to feast in optimistic happiness. Hope is the virtue of open-minding thinking, the antidote of despair, and with Faith a vital half of the highest Christian virtue of Love.